Camera Settings: Aperture, Shutter Speed & ISO (the Exposure Triangle)

published on July 20, 2020

We're Tony and Chelsey Northrop and we're going to teach you about aperture shutter speed and ISO sometimes called the exposure triangle yep we're not just going to be telling you which each individual thing does but how they work together and how they'll impact your

Photos so let's first start by putting our cameras into manual mode because you'll be able to follow along if you want if you don't know how to put your camera in manual mode we probably have a tutorial for your camera so look that up

And we'll show you how to do that ISO adjust your camera's sensitivity to light so a high ISO like ISO 6400 will make your photos brighter a low ISO like ISO 100 will make your photos darker let's take some pictures of Tony at

Different ISOs and see what the difference is but first let's set our camera still 1 125th of a second f8 and my room's pretty dark I'm going to start at ISO 800 as you can see the lower ISO is like ISO 800 were way too dark

Higher ISOs like ISO 12800 or far brighter that's because as the number of your ISO goes higher it increases the sensitivity to light of your sensor notice we're showing you the camera mode in the camera setting for every example

The second time you watch this video practice by putting these settings in your camera and following along when you're testing this you might get different results item ISO 800 might be brighter or darker that's because your

Room has different amounts of light let's move on to shutter speed and see how that affects our pictures so as you can see longer shutter speeds like one thirtieth kept the shutter open for a longer fraction of a second letting in

More light producing a brighter picture shorter shutter speeds like one 4000s kept the shutter open for such a small fraction of time that the picture turned out too dark I think I got the right exposure at about one 250th when I had

The ISO and aperture set at those settings you can either use your shutter speed to freeze motion and make a fast thing still or to show motion in your photo like if you want to show the flowing of a waterfall a fast shutter

Speed like 1 mm of a second could freeze something very fast like a flying bird a slower shutter speed like 1 125th of a second would be adequate for like a portrait or a still-life if you wanted to go even slower and show that motion

In a waterfall you can go to a couple of seconds and if you slow it down even more like 30 seconds or longer you can see beautiful stars in the night sky if you know how to control your shutter speed you can take beautiful photos in

All different situations so Tony let's change your shutter speed now and we'll take pictures of a fan and see how we can freeze the motion of a fan moving or show motion okay I'm going to set my ISO back to auto ISO so that

The camera picks the right ISO for the exposure and I'll choose shutter priority to give me control over the shutter speed shutter priority is either an S on your dial or a TV in shutter priority the camera chooses the aperture

Setting automatically to keep the picture's brightness the same this is known as auto exposure putting this colorful tape on so we can more easily see where the fan blades are so I'm going to start with a slow shutter speed

And then put it up faster at 1/10 the fan is completely blurred at 150th we start to see the colors at one 200th the motion is even less pronounced and at one 400 things are starting to look clearer one 800 there's still some

Motion 1/32 hundredth I think there might be a tiny bit of motion and one four thousand I think it's pretty much frozen that's such a powerful tool as a photographer because it allows you to show or hide motion one 4000s would show

A picture of a completely still fan even though it was moving and a slow shutter speed would show the motion but you have the power to choose the perfect shutter speed to show just the right amount of motion it's also a really useful tool to

Use your shutter speed because in a crowded tourist location you can set a long exposure on a tripod and blur all of the people out of the photo almost completely so that the place that you're visiting is the main subject besides

Showing motion slow shutter speeds can introduce camera shake which is a problem that is the movement of your hands that appears as movement throughout the entire picture camera shakes almost always a bad thing and the

Solution for it is just using a faster shutter speed or putting your camera on something stable like a tripod for detailed information about eliminating cameras check out my video about the rule of

Doubles I have a quick tip for you that I use all the time I listen to my shudder because you can hear when it's faster or slower try it out go to a fast shutter speed like 1 mm of a second and you can hear how fast it sounds now go

To a slow shutter speed and you can tell it's slow it sounds slow this will be really useful when you're taking pictures and you'll often get good enough to hear the difference and say oh this sounds too

Slow let's talk about aperture aperture is this little sliding door inside of your lens when you use a low f-stop number the aperture is wide open and lets in lots of light when you use a high f-stop

Number the aperture closes down and lets in less and less light so I bet you can guess which f-stop numbers are going to produce brighter and darker pictures but let's test it out just to be sure let's switch back to manual mode so we can

Control the exposure I'll set the shutter speed to 1 250th and the ISO to 12,800 though you might need a different setting depending on how bright your room is so as you can see the larger the aperture number like f11 the darker the

Photo is a smaller the aperture number like f56 the brighter it is that's because a smaller aperture number is letting in more light if you're a math nerd like me you can think of it like fractions

Because we literally write at f / 8 or f / 11 1/8 is bigger than 1 xi and f/8 is a bigger opening than f xi this is the last one who are almost done now the secondary trait of aperture is a blurring the background so let's take

Pictures at different F stops and see the effect okay I'm gonna put my camera into aperture priority mode with Auto ISO this allows the camera to pick the perfect shutter speed to properly expose each picture so I can think only about

The aperture f-22 the guitar in the background is completely sharp but for each lower f-stop number I chose Chelsea stayed just as sharp but the background got more and more blurry this is really useful in photography because sometimes

You want to see the background and sometimes the background is ugly and you want to hide it as much as possible what would you do if you were standing in front of the Eiffel Tower what apps up would you choose like FA f-16 because I

Want that Tower to be in the picture what if you're standing in front of a parking lot you're trying to take a nice portrait of somebody f28 f4 ya nice and low f-stop numbers now if you want that beautiful wash of color that you see in

The background of so many professional portraits you might need to upgrade from your kit lens you could see even though this is an f4 lens moderately fast it didn't completely blur it out but add-on lenses have lower f-stop numbers than

Other lenses that you can buy so just pull your lens out of your back pocket this is they call a nifty 50 it's a 50 millimeter f-18 and it's available for almost every camera system so let's use the lower possible f-stop number of this

F-18 and see what those pictures look like the faster f-18 lens blurs the background more than the kit lens can creating this 3d effect that makes Chelsea pop off the background course with any lens you have the option

Of using a higher f-stop number to bring the background into focus we've been through a lot today remember ISO determines the sensors sensitivity low ISOs like iso 100 produced dark pictures when you're taking pictures out

In the full Sun and high ISOs are perfect for low-light conditions like ISO 6400 shutter speed determines how long your camera's shutter stays open long shutter speeds like one fifth of a second one twentieth of a second stay

Open for a long time gather more light and produce brighter images however as a secondary trait staying open a long time shows movement or camera shake which you can use to your advantage when you actually want to show that movement

Third we covered aperture aperture determines how big or small the opening of your lens is really big openings have low f-stop numbers and blur the background a lot but they let in more light so if you're in a dim room you

Probably want to make sure you're using the lowest possible f-stop number really high f-stop numbers close the aperture down to a small little pinhole let in less light producing a darker picture but they bring the background in focus

You can remember this same high f-stop number high background sharpness low f-stop number low background sharpness Chelsea what if people want to learn even more oh yeah I know hold on this is our book something

Digital photography it won't close to and oh my gosh and it comes with 20 hours of video see and you can learn all about composition travel photography landscapes wildlife it's all in here and we're gonna give you 20% off I swear

Just go down to the description below hit the link and use the coupon code triangle also you can subscribe to this Channel for free and watch more videos we release them all the time I demand you subscribe to this channel for free

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